(A sequel to Doctors Battle Royale)

Harley Quinn may have survived the massacre at the mansion, but was witness to an ancient evil while fighting for her survival. The Mould, a corrupting force that seeks to overtake everything good in our world and possibly beyond. The Mould Queen wait in the ancient city of Edinburgh, out for blood against power couple Harley Quinn and Poison Ivy due to the loss of one of her most loyal followers.

But Harley and Ivy are not alone in trying to stop this ancient evil.
The Hellblazer John Constantine and a Fallen Angel find that the supernatural world is shaking in it's boots as The Mould extends it's sinister reach.
Across the world, Booster Gold (the greatest hero you've never heard of!) takes notice of the damage the Mould could inflict upon the timeline and an ever-growing list of allies join forces.

As the holiday season approaches, can our unlikely band of heroes stop the Mould from taking over the world and save Christmas (even if Ivy hates the holidays)?

Note: All depictions of individuals living or dead are not meant to be taken seriously.